package com.hmdp.interceptor;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.util.StrUtil;
import com.hmdp.dto.UserDTO;
import com.hmdp.utils.RedisConstants;
import com.hmdp.utils.UserHolder;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import java.util.Map;
import java.util.concurrent.TimeUnit;

import static com.hmdp.utils.RedisConstants.LOGIN_USER_KEY;
import static com.hmdp.utils.RedisConstants.LOGIN_USER_TTL;

public class LoginInterceptor implements HandlerInterceptor {

    public static final String[] EXCLUDE_PATH_PATTERN = {
            "/shop/**", "/voucher/**", "/shop-type/**", "/blog/hot/",
            "/user/code", "/user/login",
            "/upload/**"
    };

    /**
     * 登录验证
     * @param request
     * @param response
     * @param handler
     * @return
     * @throws Exception
     */
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response,
                             Object handler) throws Exception {

        // 验证登录
        UserDTO userDTO = UserHolder.getUser();
        if (userDTO == null) {
            response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
            return false;
        }

        return true;
    }

}
